Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2002-10-29
Eur. Phys. J. B 36, 593 (2003)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
6 pages, 6 figures
Scientific paper
10.1140/epjb/e2004-00009-1
We present an Anderson-type model Hamiltonian with exchange coupling between the localized spins and the confined holes in the quantum dots to study the ferromagnetism in diluted magnetic semiconductor (DMS) quantum dot arrays embedded in semiconductors. The hybridization between the quantum-confined holes in the DMS quantum dots and the itinerant holes in the semiconductor valence band makes hole transfer between quantum dots, which can induce the long range ferromagnetic order of the localized spins. In addition, it makes the carrier spins both in the DMS quantum dots and in the semiconductors polarized. The spontaneous magnetization of the localized spins and the spin polarization of the holes are calculated using both the Weiss mean field approximation and the self-consistent spin wave approximation, which are developed for the present model.
Lyu Pin
Moon Kyungsun
No associations
LandOfFree
Ferromagnetism in diluted magnetic semiconductor quantum dot arrays embedded in semiconductors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Ferromagnetism in diluted magnetic semiconductor quantum dot arrays embedded in semiconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ferromagnetism in diluted magnetic semiconductor quantum dot arrays embedded in semiconductors will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-533854